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Finding the Fourth Proportional to 698,771.88, 964,308.42 and 396,982.44

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Solution

The fourth proportional to 698,771.88, 964,308.42 and 396,982.44 is: 547,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,771.88 : 964,308.42 = 396,982.44 : x
  2. Step 2: Convert to fraction form
    698,771.88/964,308.42 = 396,982.44/x
  3. Step 3: Cross multiply
    698,771.88x = 964,308.42 × 396,982.44
  4. Step 4: Simplify right side
    698,771.88x = 382,813,509,484.15
  5. Step 5: Solve for x
    x = 382,813,509,484.15/698,771.88
  6. Step 6: Final answer
    x = 547,837.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.